The Siemens 3VA2010-5JP46-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for 100 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. Four poles, with an ETU550 electronic trip unit that supports communication functions for integration into a monitored distribution system.
Interrupting capacity and selectivity
This MCCB delivers 187 kA at 240 V and 121 kA at 415 V, dropping to 75.6 kA at 500 V and 3 kA at 690 V. That 187 kA figure at 240 V gives you headroom for high-fault panels — useful downstream of a large transformer or on a service entrance where available fault current is high. The 121 kA at 415 V covers most industrial 400 V distribution without needing a current-limiting upstream device.
Panel fit and environment
Dimensions are 181 mm high, 140 mm wide, 86 mm deep — a 4-pole MCCB in the SENTRON 3VA frame. Front IP40 protection means it is suited for enclosed panel mounting where the front face is behind a door. The ETU550 trip unit is adjustable and supports communication, so it fits into a monitored distribution scheme with remote trip indication or power metering.
What the ratings mean for fit
The 100 A continuous rating holds at every ambient from 40 °C to 70 °C — no thermal derating curve to calculate for a warm panel. Insulation voltage is rated 800 V, so the breaker is comfortable on 480/277 V or 600 V systems. The ETU550 electronic trip unit gives you adjustable long-time, short-time, instantaneous, and ground-fault protection curves, plus communication for status and metering data.